#include <iostream>
using namespace std;
class temp
{
public:
	int a;
	static int b;
};
int temp::b;
int main()
{
	temp temp;
	temp.a=10;
	cout << sizeof(temp) << endl;
	cout << temp.b << endl;
	temp.b=20;
	cout << temp.b << endl;
	return 0;
}
